Country Species Summary

Anguilla marmorata in Mauritius
Giant mottled eel

Anguilla marmorata Quoy & Gaimard, 1824
Family:	Anguillidae (Freshwater eels)	picture (Anmar_u0.jpg) by Warren, T.
Order:	Anguilliformes (eels and morays)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Giant mottled eel
Max. size:	70.0 cm TL (male/unsexed; Ref. 57749); 200 cm TL (female); max. published weight: 20.5 kg (Ref. 13337); max. published weight: 15 kg; max. reported age: 40 years
Environment:	demersal; catadromous ; depth range 1 - 400 m
Climate:	tropical; 24°N - 33°S
Global Importance:	fisheries: commercial; aquaculture: commercial
Resilience:	Very low, minimum population doubling time more than 14 years (tmax=40)
Distribution:	Indo-Pacific: East Africa to French Polynesia, north to southern Japan. Africa: inland Mozambique and lower Zambezi River.
Diagnosis:	Vertebrae: 100-110. Adults have a brownish to black marbling on their back on a greyish yellow background. This coloration can fade away. White belly. Younger specimens are greyish to orange and the marbling is less visible (Ref. 48622). Body color brown speckles scattered on back, sides and fins; yellow between speckles and edge of pectoral fin; belly white or pale blue (Ref. 45563). Head rounded; snout depressed; lower jaw protruded; gill openings small; scales matted-like under skin; pectoral fin rounded; pelvic fin absent (Ref. 45563). Distinguished from all other species by the mottled color and the long dorsal fin, which begins closer to the gill opening than to the anus (Ref. 9828).
Biology:	Lives in freshwater areas as adults, estuaries and seas as young (Ref. 12693). Found in lowland rivers as well as upland tributaries (Ref. 2847). While in rivers, the sex gland of the fish does not develop and in winter it follows streams to river mouths where the sex gland begins to develop and afterwards it goes to deep sea to breed (Ref. 45563). Its spawning grounds are deep sea gullies among the south of the Philippines, east of Indonesia and Papua New Guinea (Ref. 45563). Inhabits deep rocky pools (Ref. 7248). Is active at night, feeding on a wide range of prey (Ref. 7248, 79840), especially crabs, frogs and fish (Ref. 7248). Thought to breed east of Madagascar where the young are wafted to the East Coast by ocean currents (Ref. 13337, 79840)
Threatened:	Not Evaluated, see IUCN Red List , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Castle, P.H.J.. 1984. (Ref. 3506)
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Mauritius country information
Common names:	Anguille marbrée, Z'amab, Z'anguille	Ref: Keith, P., G. Marquet, P. Valade, P. Bosc and E. Vigneux, 2006
Status:	native	Ref: Castle, P.H.J., 1984
Salinity:	freshwater, brackish, marine
Aquaculture:		Ref:
Regulations:	no regulations	Ref:
Uses:	live export:
Comments:	Also Ref. 3506, 3971, 33390, 79840.
Country Information:	www.cia.gov/cia/publications/factbook/geos/mp.html
National Fisheries Authority:	ncb.intnet.mu/fishco/index.htm
Occurrences:	Occurrences Point map
Main Ref:	Baissac, J. de B., 1990
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Modified: Musschoot, Tobias

Entered: Luna, Susan M.

CGNET - US

Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07

	Ref.:		Glossary
		(e.g. 9948)		(e.g. cephalopods)
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